selftests: ublk: add test_stress_05.sh

Add test_stress_05.sh for covering removing device with recovery
enabled.

io-hang has been observed with the following patch:

https://lore.kernel.org/linux-block/20250403-ublk_timeout-v3-1-aa09f76c7451@purestorage.com/

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20250412023035.2649275-13-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/tools/testing/selftests/ublk/Makefile b/tools/testing/selftests/ublk/Makefile
index d93373384e931febc666e68400dd61da25a2648f..dddc64036aa1b65be469504eb04cac62c133f433 100644 (file)
--- a/tools/testing/selftests/ublk/Makefile
+++ b/tools/testing/selftests/ublk/Makefile
@@ -25,6 +25,7 @@ TEST_PROGS += test_stress_01.sh
 TEST_PROGS += test_stress_02.sh
 TEST_PROGS += test_stress_03.sh
 TEST_PROGS += test_stress_04.sh
+TEST_PROGS += test_stress_05.sh
 
 TEST_GEN_PROGS_EXTENDED = kublk
 

diff --git a/tools/testing/selftests/ublk/test_stress_05.sh b/tools/testing/selftests/ublk/test_stress_05.sh
new file mode 100755 (executable)
index 0000000..a7071b1
--- /dev/null
+++ b/tools/testing/selftests/ublk/test_stress_05.sh
@@ -0,0 +1,64 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+. "$(cd "$(dirname "$0")" && pwd)"/test_common.sh
+TID="stress_05"
+ERR_CODE=0
+
+run_io_and_remove()
+{
+       local size=$1
+       local dev_id
+       local dev_pid
+       shift 1
+
+       dev_id=$(_add_ublk_dev "$@")
+       _check_add_dev $TID $?
+
+       [ "$UBLK_TEST_QUIET" -eq 0 ] && echo "run ublk IO vs. remove device(ublk add $*)"
+
+       fio --name=job1 --filename=/dev/ublkb"${dev_id}" --ioengine=libaio \
+               --rw=readwrite --iodepth=128 --size="${size}" --numjobs=4 \
+               --runtime=40 --time_based > /dev/null 2>&1 &
+       sleep 4
+
+       dev_pid=$(_get_ublk_daemon_pid "$dev_id")
+       kill -9 "$dev_pid"
+
+       if ! __remove_ublk_dev_return "${dev_id}"; then
+               echo "delete dev ${dev_id} failed"
+               return 255
+       fi
+}
+
+ublk_io_and_remove()
+{
+       run_io_and_remove "$@"
+       ERR_CODE=$?
+       if [ ${ERR_CODE} -ne 0 ]; then
+               echo "$TID failure: $*"
+               _show_result $TID $ERR_CODE
+       fi
+}
+
+_prep_test "stress" "run IO and remove device with recovery enabled"
+
+_create_backfile 0 256M
+_create_backfile 1 256M
+
+for reissue in $(seq 0 1); do
+       ublk_io_and_remove 8G -t null -q 4 -g 1 -r 1 -i "$reissue" &
+       ublk_io_and_remove 256M -t loop -q 4 -g 1 -r 1 -i "$reissue" "${UBLK_BACKFILES[0]}" &
+       wait
+done
+
+if _have_feature "ZERO_COPY"; then
+       for reissue in $(seq 0 1); do
+               ublk_io_and_remove 8G -t null -q 4 -g 1 -z -r 1 -i "$reissue" &
+               ublk_io_and_remove 256M -t loop -q 4 -g 1 -z -r 1 -i "$reissue" "${UBLK_BACKFILES[1]}" &
+               wait
+       done
+fi
+
+_cleanup_test "stress"
+_show_result $TID $ERR_CODE